Merge branch 'develop' of develop.openfoam.com:Development/OpenFOAM-plus into develop

This commit is contained in:
mattijs
2016-01-06 16:55:22 +00:00
8 changed files with 32 additions and 59 deletions

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@ -106,10 +106,10 @@ diffusionMulticomponent<CombThermoType, ThermoType>::init()
const List<specieCoeffs>& rhs = reactions_[k].rhs();
const label fuelIndex = species[fuelNames_[k]];
const label oxydantIndex = species[oxydantNames_[k]];
const label oxidantIndex = species[oxidantNames_[k]];
const scalar Wu = specieThermo_[fuelIndex].W();
const scalar Wox = specieThermo_[oxydantIndex].W();
const scalar Wox = specieThermo_[oxidantIndex].W();
forAll(lhs, i)
{
@ -130,7 +130,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::init()
Info << "Fuel heat of combustion : " << qFuel_[k] << endl;
s_[k] =
(Wox*mag(specieStoichCoeffs[oxydantIndex]))
(Wox*mag(specieStoichCoeffs[oxidantIndex]))
/ (Wu*mag(specieStoichCoeffs[fuelIndex]));
Info << "stoichiometric oxygen-fuel ratio : " << s_[k] << endl;
@ -169,14 +169,14 @@ diffusionMulticomponent
RijPtr_(reactions_.size()),
Ci_(reactions_.size(), 1.0),
fuelNames_(this->coeffs().lookup("fuels")),
oxydantNames_(this->coeffs().lookup("oxydants")),
oxidantNames_(this->coeffs().lookup("oxidants")),
qFuel_(reactions_.size()),
stoicRatio_(reactions_.size()),
s_(reactions_.size()),
YoxStream_(reactions_.size(), 0.23),
YfStream_(reactions_.size(), 1.0),
sigma_(reactions_.size(), 0.02),
oxydantRes_(this->coeffs().lookup("oxydantRes")),
oxidantRes_(this->coeffs().lookup("oxidantRes")),
ftCorr_(reactions_.size(), 0.0),
alpha_(1),
laminarIgn_(false)
@ -275,13 +275,13 @@ diffusionMulticomponent<CombThermoType, ThermoType>::correct()
for (label k=0; k < nReactions; k++)
{
const label fuelIndex = species[fuelNames_[k]];
const label oxydantIndex = species[oxydantNames_[k]];
const label oxidantIndex = species[oxidantNames_[k]];
const volScalarField& Yfuel =
this->thermo().composition().Y(fuelIndex);
const volScalarField& Yox =
this->thermo().composition().Y(oxydantIndex);
this->thermo().composition().Y(oxidantIndex);
const volScalarField ft
(
@ -303,7 +303,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::correct()
const volScalarField OAvailScaled
(
"OAvailScaled",
Yox/max(oxydantRes_[k], 1e-3)
Yox/max(oxidantRes_[k], 1e-3)
);
const volScalarField preExp
@ -499,7 +499,7 @@ diffusionMulticomponent<CombThermoType, ThermoType>::read()
{
this->coeffs().readIfPresent("Ci", Ci_);
this->coeffs().readIfPresent("sigma", sigma_);
this->coeffs().readIfPresent("oxydantRes", oxydantRes_);
this->coeffs().readIfPresent("oxidantRes", oxidantRes_);
this->coeffs().readIfPresent("ftCorr", ftCorr_);
this->coeffs().readIfPresent("alpha", alpha_);
this->coeffs().readIfPresent("laminarIgn", laminarIgn_);

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@ -35,14 +35,15 @@ Description
where:
D : is a model constant.
muEff : is the effective turbulent diffusivity
prob : is a Gaussian shaped distribution around the stoichiometric value
of each reaction. The distribtion has the input parameter 'sigma'
for standard deviation.
D : is a model dynamic constant defined as C*f02 where:
C is a model constant
f02 = 1 + sqr(O2/oxidantRes), oxidantRes is an user input
The variable prob is multiplied by the factor: 1 + pow2(O2/oxydantRes),
where oxydantRes is the residual oxydant specified for each reaction.
muEff : is the effective turbulent viscosity
prob : is a normalized Gaussian shaped distribution around the stoichiometric
value of each reaction. The distribtion is controled by 'sigma'
for standard deviation and ftCorr for correction of the stoichiometric
value.
In the combustion properties dictionary:
@ -50,22 +51,15 @@ Description
{
Ci (1.0 1.0); // Default to 1
fuels (CH4 CO);
oxydants (O2 O2);
oxidants (O2 O2);
YoxStream (0.23 0.23); // Default to 0.23
YfStream (1.0 1.0); // Default to 1.0
sigma (0.02 0.02); // Default to 0.02
oxydantRes (0.025 0.005);
oxidantRes (0.025 0.005);
ftCorr (0.0 0.0); // Default to 0.0
laminarIgn false; // Default false
}
ftCorr is used to shift the location of the flame and corrects the
stochimetric mixture value when the mesh resolution is not enough
to resolve the combustion zone.
NOTE: Optionally the switch 'laminarIgn' can be used to ignite the mixture
using laminar combustion.
SourceFiles
diffusionMulticomponent.C
@ -112,8 +106,8 @@ class diffusionMulticomponent
//- List of fuels for each reaction
wordList fuelNames_;
//- List of oxydants for each reaction
wordList oxydantNames_;
//- List of oxidants for each reaction
wordList oxidantNames_;
//- Heat of combustion [J/Kg]
scalarList qFuel_;
@ -134,7 +128,7 @@ class diffusionMulticomponent
scalarList sigma_;
//- Residual oxydaser
scalarList oxydantRes_;
scalarList oxidantRes_;
//- ft stochiometric correction
scalarList ftCorr_;

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@ -34,7 +34,9 @@ boundaryField
}
outlet
{
type zeroGradient;
type inletOutlet;
inletValue uniform 100;
value uniform 100;
}
frontAndBack
{

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@ -34,7 +34,9 @@ boundaryField
}
outlet
{
type zeroGradient;
type inletOutlet;
inletValue uniform 1;
value uniform 1;
}
frontAndBack
{

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@ -1,25 +0,0 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.2.1 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object RASProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
RASModel kEpsilon;
turbulence on;
printCoeffs on;
// ************************************************************************* //

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@ -35,7 +35,7 @@ divSchemes
div(phi,epsilon) Gauss limitedLinear 1;
div(phi,R) Gauss limitedLinear 1;
div(R) Gauss linear;
div(phiXi,Xi) Gauss limitedLinear 1;
div(phiXi,Xi) Gauss upwind;
div(phiXi,Su) Gauss limitedLinear 1;
div(phiSt,b) Gauss limitedLinear01 1;
div(phi,ft_b_ha_hau) Gauss multivariateSelection

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@ -35,11 +35,11 @@ diffusionMulticomponentCoeffs
{
Ci (1.0 1.5);
fuels (CH4 CO);
oxydants (O2 O2);
oxidants (O2 O2);
YoxStream (0.23 0.23);
YfStream (1.0 1.0);
sigma (0.02 0.02);
oxydantRes (0.015 0.005);
oxidantRes (0.015 0.005);
ftCorr (0 0);
laminarIgn false;
}

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@ -33,7 +33,7 @@ divSchemes
div(rhoPhi,U) Gauss vanLeerV;
div(phi,thermo:rho.water) Gauss linear;
div(phi,thermo:rho.air) Gauss linear;
div(rhoPhi,T) Gauss vanLeer;
div(rhoPhi,T) Gauss linear;
div(rhoPhi,K) Gauss linear;
div((phi+meshPhi),p) Gauss linear;